Thanks, Don. HHmmm...now I wish I could have built my K2. I'd have a better idea of what you're talking about.
This sounds like a project for Saturday afternoon. I read through the SSB adapter manual this afternoon, so it's not as intimidating sounding as I first thought. Nevertheless, I'll make sure my fridge is full of beer before I start on this! 73 - Ken --- Don Wilhelm <[EMAIL PROTECTED]> wrote: > Ken, > > First, investigate the filter settings for RTTY with > Spectrogram. Be > certain the FL1 positions are correct (use the OP1 > filter and set the > BFOs similar to those used for SSB FL1). You may > set the RTTY FL2, FL3, > FL4 filters any way you wish, but FL1 must be set to > OP1 and the BFOs > correct for that filter. The LSB settings (RTTY) > will have the BFO > positioned below the filter center frequency > (typically the BFO > frequency will be 4913.xx) and the USB BFO (RTTY-r) > will be positioned > above the crystal filter center (typical 4916.xx). > The .xx part of the > frequency will vary depending on the exact filter > center frequency. > > Secondly, revisit the carrier balance adjustment on > the KSB2 board - you > can do that is SSB mode, but check using both LSB > and USB - you may have > to compromise a bit between the two. > > After doing the above, check the K2 on RTTY again - > if you have audio > frequency tones going into the mic connector, it > should work just the > same as for SSB - and on both sidebands. > > 73, > Don W3FPR > > Ken Alexander wrote: > > Hi Folks, > > > > I reported this problem back in the spring but > didn't > > have time to act on it. Forgive me as I re-state > the > > problem I'm having. > > > > I have a K2 equipped with Don Wilhelm's constant > audio > > volume mod for digital operation (hope I described > it > > correctly, Don). I also use a Tigertronics SL-1+ > > interface between my K2 and my notebook. > > > > In LSB mode I'm able to transmit RTTY and PSK-31 > > without any problems. When I change the K2 to > RTTY > > mode I get no transmitter output (receive works > fine). > > The PTT indicator on the SL-1+ lights and the K2 > > receiver mutes, but there's no RF output indicated > on > > the K2's meter or an external power meter. > > > > Cables and connections are fine, and as I > mentioned, > > simply switching to LSB gets me back on the air. > > > > I don't get on the air as frequently as I'd like, > and > > at times sitting down with the K2 and using it is > like > > starting over from scratch. So, there's a good > > possibility that something's not set correctly. > > However, so far I haven't found a setting that > would > > disable RTTY output like that. > > > > Can anyone help? > > > > Thanks and 73, > > > > Ken Alexander > > _______________________________________________ > > Elecraft mailing list > > Post to: [email protected] > > You must be a subscriber to post to the list. > > Subscriber Info (Addr. Change, sub, unsub etc.): > > http://mailman.qth.net/mailman/listinfo/elecraft > > > > > Help: http://mailman.qth.net/subscribers.htm > > Elecraft web page: http://www.elecraft.com > > > > > > > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
